Line 152 was shortened at the eastern end December 17, 2006 to North Hollywood Station and replaced between North Hollywood and Universal City Stations by a minor realignment of Line 156. Simultaneously, branch Line 153 was created using San Fernando Rd. to provide peak-hour access to Sun Valley Metrolink Station and the route between Universal City Station and Burbank Metrolink Station replaced by Line 155. A proposal to realign Line 152 at its western end to Warner Center Transit Hub was withdrawn by staff after public hearing.

Line 155 was realigned in the Burbank Media District June 24, 2007 using the routing of Line 96, with late night and weekend service cancelled. When implemented, Line 155 was interlined with Line 292.

A proposal in the June, 2008 service change program to cancel Line 155 was withdrawn by staff; it was subsequently extended to Sherman Oaks on June 26, 2011, replacing the Valley portion of Line 96. The Line 153 branch was cancelled December 13, 2009.